Satisfied customers are nice to have, but they aren’t going out of their way to tell anyone about you. What we need are stark-raving fans. To get people excited, you need to deliver much more than you promise. Sounds hard to do, doesn’t it? The key, according to author and entrepreneuer Michael Michalowicz, is to make a promise that you can actually exceed. http://on.wsj.com/pkTQez